Middle Eastern lamb pizza pie (TM6)

Pizza dough

• 30 g extra virgin olive oil, plus extra to grease
• 220 g lukewarm water
• 1 tsp sugar
• 2 tsp dried instant yeast
• 400 g baker's flour
• 1 tsp sea salt

Lamb filling

• 40 g extra virgin olive oil
• 2 garlic cloves
• 200 g onion, cut into wedges (3-4 cm)
• 250 g lamb mince (see Tips)
• 50 g tomato paste
• 40 g water, plus 1 tablespoon extra
• 30 - 50 g harissa paste, to taste (see Tips)
• 200 g feta cheese, crumbled
• 60 g fresh baby spinach leaves
• 1 - 2 tbsp pine nuts
• 1 egg, beaten
• olive oil spray